CN105873642A - Abrasive cleaning composition - Google Patents

Abrasive cleaning composition Download PDF

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Publication number
CN105873642A
CN105873642A CN201480068222.5A CN201480068222A CN105873642A CN 105873642 A CN105873642 A CN 105873642A CN 201480068222 A CN201480068222 A CN 201480068222A CN 105873642 A CN105873642 A CN 105873642A
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China
Prior art keywords
calcium carbonate
acid
weight
grinding
compositions
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Granted
Application number
CN201480068222.5A
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Chinese (zh)
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CN105873642B (en
Inventor
T·布德
M·斯科弗比
D·E·格拉德
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Omya Development AG
Omya International AG
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Omya Development AG
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0216—Solid or semisolid forms
    • A61K8/022—Powders; Compacted Powders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/14—Fillers; Abrasives ; Abrasive compositions; Suspending or absorbing agents not provided for in one single group of C11D3/12; Specific features concerning abrasives, e.g. granulometry or mixtures
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/28—Rubbing or scrubbing compositions; Peeling or abrasive compositions; Containing exfoliants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/413—Nanosized, i.e. having sizes below 100 nm
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds

Abstract

The present invention relates to an abrasive cleaning composition comprising at least 6 wt.-%, based on the total weight of the composition, of a surface-reacted calcium carbonate as an abrasive material, wherein the surface-reacted calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and at least one acid.

Description

Grind Cleasing compositions
Technical field
The present invention relates to grind Cleasing compositions, its purposes and for the method cleaning surface.
Background technology
Polishing detergent is well known in the art, and is widely used in cleaning all kinds The surface of class, the most dirty and be difficult to remove spot and the surface of dirt.Such as, grind clearly Clean dose can be used for cleaning household surface such as desk, sink or dish surface and being used in individual In care product such as toothpaste, face and health scrubbing cream or soap.
Tradition polishing detergent comprise inorganic abradant such as carbonate, clay, silicon dioxide, Silicate, shale ashes, perlite or quartz sand or organic polymer pearl such as polypropylene, PVC, Tripolycyanamide, carbamide, polypropylene ester or derivatives thereof.Comprise calcium carbonate as grinding-material Liquid cleansing composition is such as described in WO 2013/078949.It is directed to use with natural alkaline earth The dry cleaning method being used for cleaning the surface of solids of carbonate particles is disclosed in WO In 2009/133173.
Microgranule calcium carbonate is that highly effective tough dirt removes agent, but also has the table of height Face infringement probability.Therefore use it for fine surface can throw into question.Such as, if be used for In toothpaste, grinding agent based on calcium carbonate may infringement enamel and dentin.Additionally, in order to Producing pleasant sensation in mouth, conventional toothpaste needs the calcium carbonate of high-load, this so that can lead Cause disadvantageous chilternu taste properties.
In order to overcome some shortcomings of grinding agent based on calcium carbonate, it has been already proposed to use surface is coated with The calcium carbonate covered.WO 2013/041711 describes and cleans (dental powder for dentifrice Blasting) powder, wherein calcium carbonate particle coats through alkali metal fluoride.WO 02/085319 relate to can be with fluoride compatibility calcium carbonate, and wherein calcium carbonate particle is the most fatty Acid and/or polysaccharide process.EP 0 219 483 is disclosed for the pyrophosphoric acid of calcium carbonate dental abrasive Ester coating process.WO 03/075874 relates to the dentifrice composition including acid tolerant calcium carbonate, its Silicate surfaces processes.But, all these methods cause calcium carbonate particle, wherein carbon The dosed face coat in original porous surface of acid calcium particle seals, and therefore surface texture is changed Become.
In view of the above, the new grinding agent that can be used in Cleasing compositions had lasting need Ask.
Summary of the invention
Therefore, it is an object of the invention to provide grinding Cleasing compositions, it avoids at least some Aforesaid shortcoming.In particular, it is desirable that provide the grinding cleaning group with the gentleest abrasive properties Compound, and therefore may be alternatively used for cleaning fine surface.Also want to grinding-material be used for Pleasant mouthfeel is provided during toothpaste.
Grinding Cleasing compositions it is further an object that provide, it is based on can be from natural The material that source obtains.It would also be desirable to provide the cleaning combination comprising the grinding agent being readily biodegradable Thing.
Aforementioned and other purpose is able to by the theme defined the most in the independent claim Solve.
A kind of embodiment according to the present invention, it is provided that grinding Cleasing compositions, it comprises
The calcium carbonate of surface based on composition total weight meter at least 6 weight % reaction is as grinding Mill material,
Wherein the calcium carbonate of surface reaction is naturally occurring or synthetic calcium carbonate and carbon dioxide and at least A kind of product of acid.
According to another embodiment of the present invention, it is provided that cleaning surface method, wherein surface with Grinding Cleasing compositions contact according to the present invention.
Another embodiment according to the present invention, it is provided that the calcium carbonate of surface reaction is as grinding material The purposes of material, wherein the calcium carbonate of surface reaction be naturally occurring or synthetic calcium carbonate with carbon dioxide and The product of at least one acid.
Another embodiment according to the present invention, it is provided that according to the grinding Cleasing compositions of the present invention For cleaning the purposes on surface.
The Favourable implementations of the present invention is defined in corresponding dependent claims.
According to a kind of embodiment, compositions comprises the grinding material that at least one is extra further Material, is preferably selected from silicon dioxide, precipitated silica, aluminium oxide, aluminosilicate, Metaphosphoric acid Salt, tricalcium phosphate, calcium pyrophosphate, natural ground calcium carbonate, winnofil, sodium bicarbonate, Bentonite, Kaolin, aluminium hydroxide, calcium hydrogen phosphate, hydroxyapatite, and its mixture. According to another embodiment, this at least one sour hydrochloric acid that is selected from, sulphuric acid, sulfurous acid, phosphoric acid, Citric acid, oxalic acid, acetic acid, formic acid, and its mixture, the most preferably, this is at least one years old Planting acid is phosphoric acid.
According to a kind of embodiment, the calcium carbonate of surface reaction is particulate forms, and described particle has Have from 0.1 to 100 μm, preferably from 0.5 to 50 μm, more preferably from 1 to 20 μm, again More preferably from 2 to 10 μm, and most preferably from the Weight Median particle size of 5 to 10 μm d50.According to another embodiment, compositions comprise based on composition total weight meter from 10 to 80 weight %, preferably from 15 to 70 weight %, more preferably from 20 to 60 weight %, the most more Preferably from 25 to 50 weight %, and the carbonic acid of the surface reaction of most preferably from about 30 weight % Calcium.
According to a kind of embodiment, said composition is oral care composition, preferably toothpaste, Dentifrice, the powder cleaned for dentifrice or chewing gum, and the most preferably, surface is reacted Calcium carbonate be naturally occurring or synthetic calcium carbonate and carbon dioxide and the product of phosphoric acid.According to separately A kind of embodiment, the calcium carbonate of surface reaction has 10-100, the radioactivity of preferably 30-70 Dentin attrition (RDA) value.
According to a kind of embodiment, said composition does not comprise extra calcium carbonate-base material.According to Another embodiment, the calcium carbonate of surface reaction comprises the anion of this at least one acid not The calcium salt of at least partly crystallization of dissolubility, it is formed on the surface of naturally occurring or synthetic calcium carbonate. According to another embodiment, said composition comprises surfactant further, it is preferable that its Consumption is calculated as from 0.1 to 10 weight % based on total composition, preferably from 0.5 to 8 weight %, And most preferably from 1 to 5 weight %.
According to a kind of embodiment, the surface contacted with the present composition is lived table Face, is preferably selected from human body skin, animal skin, human hair, animal hair, and oral cavity Tissue is such as tooth, gingiva, lingual surface or buccal surface.According to another embodiment, surface reaction Calcium carbonate is used as dental abrasion material.
Should be understood that for purposes of the present invention, following term has following implication.
Term " grinding-material " in implication of the present invention refers to by friction or grinds throwing Light or the particle matter on cleaning surface.In order to determine " lapping degree " of grinding-material, can use Method described in embodiment part.
For purposes of the present invention, " sour " is defined asAcid, namely Saying, it is H3O+Ion donor." acid salt " is defined as being neutralized by positive electricity element portions H3O+Ion donor." salt " is defined as the electric neutrality ion formed by anion and cation Compound." partially crystallizable salt " is defined as following such salt, and this salt is through XRD analysis Present the most discrete diffraction pattern.
Term " carrier material " in implication of the present invention is a kind of basic material, and it can be with this The Cleasing compositions that grinds of invention combines and is conducive to grinding using of Cleasing compositions.Carrier The example of material is toothpaste formulation, chewing gum, patch, unguentum, oil or soap.
In implication of the present invention, " Radioactive Dentin Abrasion (RDA) " is the grinding in toothpaste Agent is measured the erosion effect of the dentine of tooth.It is directed to use with standardization grinding agent and test Sample compares.The determination of this numerical value is carried out in the following manner: determine at cleaning mill The activity during dentine damaged, it is carried out radioactive label by gentle neutron irradiation.The number obtained Value depends on the size of grinding agent, consumption and surface texture used in toothpaste.RDA numerical value Arranged by DIN EN ISO 11609 standard.The RDA be given in embodiment of the present invention part Numerical value is relative RDA numerical value, its passed through method of describing in an embodiment measure and It is associated with above-mentioned RDA numerical value.
For purposes of the present invention, term " glossiness " is that basidigitale such as glass or plastic sheet exist Mirror angle reflects the ability of a part of incident illumination.Glossiness can be based on to set angle of incidence from base The measurement result of basal surface direct reflection light quantity, such as under 20 °, such as 20 ° of glossiness In the case of and particularly point out with percent.This glossiness can be according to EN ISO 8254-1:2003 Measure.
" grinding calcium carbonate " (GCC) in implication of the present invention refers to available from natural origin (example Such as limestone, marble, dolomite or Chalk) and via such as grinding, screen and/or carefully Divide the calcium carbonate that the wet and/or dry-cure of (such as by cyclone separator or clasfficiator) is processed.
" winnofil " (PCC) in implication of the present invention is synthetic material, and it passes through dioxy Change the postprecipitation of carbon and Calx reaction in aqueous environments or pass through calcium with carbanion source at water Middle precipitation and obtain.PCC can be vaterite, calcite or aragonite crystal form.
Presents in the whole text in, " particle size " of calcium carbonate material or grinding-material pass through its Particle size distribution describes.Value dxRepresent that the diameter of particle of x weight % is less than dxInstitute is relatively Diameter.This means d20The particle size that 20 weight % that value is all particles are less than, And d75The particle size that 75 weight % that value is all particles are less than.d50Therefore value is weight Median particle size, that is, 50 weight % of all granules are more than or less than this particle size. For purposes of the present invention, unless otherwise directed, otherwise particle size is defined as Weight Median Particle size d50.In order to determine Weight Median particle size d50Value, can use Malvern Mastersizer 2000。
" specific surface area (SSA) " in the implication of the present invention is defined as coloring earth table Area is divided by calcium carbonate quality.As used herein, this specific surface area uses BET isothermal line (ISO 9277:2010) measured by nitrogen adsorption and with m2/ g indicates.
In the implication of the present invention, term " surfactant " refer to reduce between two kinds of liquid or Interfacial tension between person's liquid and solid or capillary compound, and be used as Detergent, wetting agent, emulsifying agent, foaming agent or dispersant.
For purposes of the present invention, term " viscosity " or " brookfield viscosity (Brookfield Viscosity) " brookfield viscosity is referred to.Brookfield viscosity is for this purpose by Bu Shi (Typ RVT) Viscometer uses suitable spindle to measure at 20 DEG C ± 2 DEG C at 100 rpm, and with MPa s indicates.
In the implication of the present invention, term " suspension " or " slurry " comprise insoluble solid With water and optional other additive, and generally comprise substantial amounts of solid, and thus and shape The liquid phase becoming it than more thickness and is generally of higher density.
" include when using term in the present specification and claims or comprise (comprising) " Time, it is not excluded that other key element.For purposes of the present invention, term " by ... constitute (consisting Of) " it is considered as the term preferred embodiment that " includes or comprise (comprising of) ". If group collection (group) defined below includes the embodiment of at least some, Then this is also understood to disclose a group collection, and it is the most only made up of these embodiments.
Indefinite article or definite article such as " a ", " an " or " the " is used when talking about singular noun In the case of, this includes the plural number of this noun, unless additionally specifically noted under certain situation.
Such as " (obtainable) can be obtained " or " definable (definable) " and " acquisition " or the term of " definition (defined) " is used interchangeably (obtained).This such as means , unless the context clearly indicates otherwise, otherwise term " obtains " and is not meant to indicate such as Sequence of steps after a kind of embodiment " must be obtained " by such as term obtains, although Term " obtains " or " definition " always includes this type of restrictive sense preferably.
The present invention grinds Cleasing compositions and comprises based on composition total weight meter at least 6 weight % The calcium carbonate of surface reaction is as grinding-material.The calcium carbonate of surface reaction is naturally occurring or synthetic carbon Acid calcium and carbon dioxide and the product of at least one acid.
Details and the preferred embodiment of the present composition will be provided below in more detail.Should Being understood by, these ins and outs and embodiment are also applied for the purposes of the present composition, The purposes of the calcium carbonate of surface of the present invention reaction and the method for the present invention.
The calcium carbonate of surface reaction
According to the present invention, the calcium carbonate of surface reaction is naturally occurring or synthetic calcium carbonate and carbon dioxide Product with at least one acid.
Natural (or grinding) calcium carbonate (GCC) is understood to be naturally-occurring the carbonic acid of form Calcium, exploitation auto-deposition rock (such as limestone or Chalk) or rotten marble rock.Known carbonic acid Calcium exists with the crystal polymorph of three types: calcite, aragonite and vaterite.Calcite For modal crystal polymorph, it is considered as the most stable of crystal form of calcium carbonate.Aragonite The most rare, it has needle-like iris crystal structure that is discrete or that gather together.Vaterite is the most rare The calcium carbonate polycrystalline type thing seen, and generally unstable.Natural whiting almost only belongs to calcite Type polymorph, according to being called tripartite's rhombohedral system and representing most stable of calcium carbonate polycrystalline type Thing.In the implication of the present invention, " source (source) " of term calcium carbonate refers to obtain carbon The naturally occurring mineral material of acid calcium.The source of calcium carbonate can comprise other naturally occurring group Point, such as magnesium carbonate, aluminosilicate etc..
According to a kind of embodiment of the present invention, natural whiting is selected from marble, Chalk, white Marble, limestone and its mixture.
According to a kind of embodiment of the present invention, GCC is obtained by dry grinding.According to the present invention Another embodiment, GCC is by wet lapping and is optionally subsequently dried and obtains.
Generally, grinding steps can such as make to pulverize mainly by using auxiliary body impact to produce Under the conditions of, carry out with any tradition lapping device, namely carry out in following one or more: Ball mill, rod mill, oscillating mill, breaker, centrifugal impact mill, vertical bead mill Machine, grater, pin rod pulverizer, hammer mill, flour mill, shredder, deblocking machine, cutting Machine (knife cutter) or other this kind equipment well known by persons skilled in the art.Containing carbonic acid In the case of calcium mineral material is the calcium carbonate mineral material of wet lapping, grinding steps can make Under conditions of autogenous grinding must occurring and/or by horizontal ball milling and/or those skilled in the art Other this type of method known is carried out.The calcium carbonate ore deposit of the thus obtained grinding through wet processing Thing material can by well-known method, such as by flocculation, filter or forced evaporation ( Before being dried) wash and be dehydrated.Subsequent drying step can be in one step (such as spray dried Dry) in carry out, or carry out at least two step.The most typically, this mineral material Carry out beneficiation steps (such as flotation, bleaching or magnetic separation step) with removal of impurity.
" winnofil " (PCC) in implication of the present invention is synthetic, generally passes through In aqueous environment the postprecipitation of carbon dioxide and lime reaction or by precipitated calcium in water and Carbanion source or by by calcium ion and carbanion (such as, CaCl2And Na2CO3) It is precipitated out from solution and obtains.Other the possible mode producing PCC be lime-soda process, Or Solvay method, wherein PCC is the by-product that ammonia produces.Winnofil is with three kinds of primary Crystal form exists: calcite, aragonite and vaterite, and for each crystal form in these crystal forms There is many different polymorphs (crystal habit) in speech.Calcite has three-legged structure, should It is hexahedro that three-legged structure has (S-PCC) of typical crystal habit such as scalenohedron, tiltedly side (R-PCC), hexagonal prism, axial plane, colloid (C-PCC) of body, cube And (P-PCC) of prism.Aragonite is orthorhombic structure, and this orthorhombic structure has In pairs the typical crystal of hexagon prism is used to state, and elongated prism, camber blades shape, Steep taper, chisel edge crystal, bifurcated tree and Corallium Japonicum Kishinouye or the multiple classification of vermiform form.Ball graupel Stone belongs to hexagonal crystal system.The PCC slurry obtained can mechanical dehydration and be dried.
According to a kind of embodiment of the present invention, synthetic calcium carbonate is winnofil, preferably wraps Containing aragonite, vaterite or calcite mineral crystal form or its mixture.
According to a kind of embodiment of the present invention, naturally occurring or synthetic calcium carbonate is utilizing carbon dioxide It is ground with before at least one acid treatment.Grinding steps may utilize known to those skilled in the art Any tradition lapping device such as grinder carry out.
Preferably, the calcium carbonate of the surface reaction that use in the present invention is prepared to aqueous and hangs Supernatant liquid, it has measures more than 6.0, preferably greater than 6.5, more preferably greater than 7.0 at 20 DEG C, The pH of more preferably greater than 7.5 again.
In the method for optimizing of the waterborne suspension of the calcium carbonate for preparing surface reaction, such as The naturally occurring or synthetic calcium carbonate being segmented by grinding or not segmenting is suspended in water.Preferably, The content of the naturally occurring or synthetic calcium carbonate that this slurry has is calculated as 1 weight % extremely based on slurry weight 80 weight %, more preferably 3 weight % are to 60 weight %, and the most more preferably 5 weight % are extremely 40 weight %.
In the next step, by this, at least one acid is added to comprising naturally occurring or synthetic calcium carbonate Waterborne suspension.According to a kind of embodiment of the present invention, this at least one acid selected from hydrochloric acid, Sulphuric acid, sulfurous acid, phosphoric acid, citric acid, oxalic acid, acetic acid, formic acid, and its mixture. Preferably, this at least one acid is phosphoric acid.It is not only restricted to any theory, it is believed by the inventors that If the calcium carbonate of this surface reaction is used in the way of oral administration, then use phosphoric acid Favourable.
According to a kind of embodiment, the pK that this at least one acid hasaIt is 2.5 or more at 25 DEG C Low.If pKaBeing 0 or lower at 25 DEG C, acid is preferably selected from sulphuric acid, hydrochloric acid, or its mixing Thing.If pKaBeing 0 to 2.5 at 25 DEG C, acid is preferably selected from H2SO3、HSO4 -、H3PO4、 Oxalic acid or its mixture.This at least one acid can be to concentrate solution or the form of more dilute solution Join in suspension.Preferably, this at least one sour with naturally occurring or synthetic calcium carbonate mole Ratio is 0.05 to 4, more preferably 0.1 to 2.
As the most optional form, it is also possible to will before naturally occurring or synthetic calcium carbonate is suspended This at least one acid is added to water.
In the next step, naturally occurring or synthetic calcium carbonate utilizes carbon dioxide to process.Two Carbonoxide can be formed in situ by acid treatment and/or can be supplied by external source.If strong acid such as sulfur Acid or hydrochloric acid are used for the acid treatment of naturally occurring or synthetic calcium carbonate, then carbon dioxide automatically forms. Additionally optionally or extraly, carbon dioxide can be supplied by external source.
Acid treatment and utilize carbon dioxide to carry out process can simultaneously to carry out, when using strong acid be exactly This situation.Also can first carry out acid treatment, such as, utilize the pK with 0 to 2.5 scopea's Moderate strength acid processes, and then utilizes the carbon dioxide supplied by external source to process.
Preferably, the concentration of the gaseous carbon dioxide in suspension makes (suspension by volume Volume): (gaseous state CO2Volume) than be 1:0.05 to 1:20, more preferably 1:0.05 To 1:5.
In preferred embodiments, repetition acid treatment step and/or carbon dioxide treatment step are extremely The most once, the most repeatedly.
After acid treatment and carbon dioxide treatment, at the pH of 20 DEG C of waterborne suspensions measured Naturally reach more than 6.0, preferably greater than 6.5, more preferably greater than 7.0, it is more preferably greater than again The numerical value of 7.5, thus prepares and has more than 6.0, and preferably greater than 6.5, more preferably greater than 7.0, Again react natural of the surface as waterborne suspension form of the pH of more preferably greater than 7.5 or Synthetic calcium carbonate.If allowing waterborne suspension reach balance, then pH is more than 7.When continuing to stir Mix waterborne suspension when reaching the time enough cycle, preferably 1 hour to 10 hours, more preferably 1 To 5 hours, then can adjust pH in the case of without alkali more than 6.0.
Additionally optionally, before reaching the balance occurred when pH is more than 7, in titanium dioxide The pH of waterborne suspension can be increased to greater than after carbon process the numerical value of 6 by interpolation alkali. Any traditional alkali, such as sodium hydroxide or potassium hydroxide can be used.
Further detail below about the preparation of the natural whiting of surface reaction is disclosed in WO In 00/39222 and US 2004/0020410, wherein the natural whiting of surface reaction is retouched State the filler for producing for paper.The calcium carbonate of surface reaction is as controlled release activating agent The purposes of carrier be described in WO 2010/037753.
Similarly, it is thus achieved that the winnofil of surface reaction.As can be detailed from EP 2 070 991 Thin acquisition, the winnofil of surface reaction obtains in the following way: make winnofil With H3O+Ion and be dissolved in aqueous medium and water-fast calcium salt can be formed Anion contacts in an aqueous medium, to form the slurry of the winnofil of surface reaction, its Described in the winnofil of surface reaction be included at least one of surface of winnofil The calcium salt of insoluble at least part of crystallization of the described anion of upper formation.
The calcium ion of described dissolving corresponds to relative to winnofil by H3O+Ion-solubility and The calcium ion of the dissolving of excess, wherein said H for the dissolving calcium ion naturally occurred3O+Ion Only provide with the form of the counter ion counterionsl gegenions of this anion, namely via adding acid or non-calcium acid salt The anion of form, and there is not any other calcium ion or calcium ion the generating resource.
The calcium ion of the dissolving of described excess preferably carries by adding solvable neutrality or acid calcium salt Confession, or produce solvable neutrality or the acid of acid calcium salt or neutral or acid non-calcium on the spot by adding Salt and provide.
Described H3O+Ion can provide by adding the acid salt of sour or described anion, or logical Cross and add the acid or acid being simultaneously used for providing the calcium ion of the dissolving of the described excess of all or part Formula salt and provide.
The calcium carbonate of surface reaction can be held in suspension, the most further by dispersant Stabilisation.Tradition dispersant well known by persons skilled in the art can be used.Preferably dispersant is Polyacrylic acid.
Additionally optionally, above-described waterborne suspension can be dried, be derived from solid (also That be i.e. dried or comprise little water and make it for the form of fluid) the sky of surface reaction So or synthetic calcium carbonate, it is the form of pellet or powder.
According to a kind of embodiment of the present invention, use nitrogen and BET method according to ISO 9277 Measuring, the calcium carbonate of surface reaction has from 5m2/ g to 200m2/ g, more preferably 20m2/g To 80m2/ g and the most more preferably 30m2/ g to 60m2The specific surface area of/g.
According to a kind of embodiment of the present invention, the form that calcium carbonate is particle of surface reaction, Described particle has from 0.1 to 100 μm, preferably from 0.5 to 50 μm, more preferably from 1 to 20 μm, the most more preferably from 2 to 10 μm, and most preferably from the weight of 5 to 10 μm Value particle size d50。
According to a kind of embodiment of the present invention, the calcium carbonate of surface reaction is included in natural or closes Become insoluble at least part of knot of the anion of this at least one acid formed on calcium carbonate surface Brilliant calcium salt.Depending on this at least one acid used, anion can be sulfate radical, sulfurous acid Root, phosphate radical, citrate, oxalate, acetate, formate and/or chlorine root.
According to another aspect of the present invention, it is provided that the calcium carbonate of surface reaction is as grinding-material Purposes, wherein the calcium carbonate of surface reaction is naturally occurring or synthetic calcium carbonate and carbon dioxide and extremely The product of few a kind of acid.Grinding-material can be used for Cleasing compositions, such as household cleaners As cleaned unguentum or pottery oven cleaners, polishing paste or unguentum, or cosmetic composition is such as Health scrubbing cream or facial exfoliant (face peelings).
According to a kind of preferred embodiment, the calcium carbonate of surface reaction is used as dentistry and grinds material Material.Dentistry grinding-material be used as the grinding-material in such as toothpaste, dentifrice or chewing gum or The grinding-material in powder is cleaned as dentifrice.
Grind Cleasing compositions
The present invention grinds Cleasing compositions and comprises based on composition total weight meter at least 6 weight % The calcium carbonate of surface reaction is as grinding-material.Such as, grind Cleasing compositions can comprise based on Composition total weight meter at least 7 weight %, at least 8 weight %, or the table of at least 9 weight % The calcium carbonate of face reaction is as grinding-material.According to a kind of embodiment of the present invention, this combination Thing comprises based on composition total weight meter from 10 to 80 weight %, preferably from 15 to 70 weights Amount %, more preferably from 20 to 60 weight %, the most more preferably from 25 to 50 weight %, and The calcium carbonate of the surface reaction of most preferably from about 30 weight %.
The calcium carbonate that the calcium carbonate of surface reaction can only be reacted by a kind of surface forms or can be The mixture of the calcium carbonate of two or more surfaces reaction.The grinding Cleasing compositions of the present invention The calcium carbonate of this surface reaction can be comprised as unique grinding-material.Additionally optionally, this Bright grinding Cleasing compositions can comprise calcium carbonate and at least one extra grinding of this surface reaction The combination of mill material.Other grinding-material can be by plastics, hard wax, inorganic and organic abrasives Or natural material makes.
According to a kind of embodiment, the grinding Cleasing compositions of the present invention comprises at least one further Plant extra grinding-material.Preferably, extra grinding-material is selected from silicon dioxide, precipitation two Silicon oxide, aluminium oxide, aluminosilicate, metaphosphate, tricalcium phosphate, calcium pyrophosphate, natural Grinding calcium carbonate, winnofil, sodium bicarbonate, bentonite, Kaolin, aluminium hydroxide, Calcium hydrogen phosphate, hydroxyapatite, and its mixture.According to a kind of preferred embodiment, volume Outer grinding-material is selected from grinding calcium carbonate and/or precipitated silica.Preferred according to another Embodiment, this at least one extra grinding-material selected from natural whiting, winnofil, Aluminium hydroxide, calcium hydrogen phosphate, silicon dioxide, hydroxyapatite and its mixture.
According to a kind of embodiment, this extra grinding-material has from 0.1 to 100 μm, excellent Choosing is from 0.5 to 50 μm, more preferably from 1 to 20 μm, and most preferably from 2 to 10 μm Weight Median particle size d50。
This at least one extra grinding-material may be present in the amount ground in Cleasing compositions based on Composition total weight is calculated as 1 to 80 weight %, preferably from 5 to 70 weight %, more preferably from 10 to 60 weight %, and most preferably from 20 to 50 weight %.
According to a kind of preferred embodiment, grind Cleasing compositions and comprise based on compositions gross weight The calcium carbonate of the surface reaction of gauge at least 6 weight % is as grinding-material and 1 to 80 weight The extra grinding-material of amount %.
According to a kind of embodiment of the present invention, grind Cleasing compositions and do not comprise extra carbonic acid Calcium-based materials.The example of calcium carbonate-base material is calcium carbonate, calcium carbonate mineral or mixed carbonic acid The salt based filler such as calcium (calcium associated with magnesium) that is combined with magnesium and Analog or derivant, various materials such as clay or Talcum or the like or derivant, and this The mixture of a little fillers, such as talc-calcium carbonate mixture or calcium carbonate-kaolin mixture, Or natural whiting and aluminium hydroxide, Muscovitum or with synthesis or the mixture of natural fiber or mineral Co-structured thing (co-structure), such as talc-calcium carbonate or Talcum-titanium dioxide or carbon The acid co-structured thing of calcium-titanium dioxide.
The grinding Cleasing compositions of the present invention can be with the form or the form of liquid that are solid.According to A kind of embodiment, grinding Cleasing compositions is solid form, preferably powder, pellet, ingot Agent, rod, chunk, block, sponge or brick.According to another embodiment, grind cleaning combination Thing is liquid form, preferably solution, suspension, paste, emulsion, unguentum, oil or gel.
According to a kind of embodiment of the present invention, grinding Cleasing compositions is liquid waterborne combination Thing.According to a kind of embodiment, this waterborne compositions comprises based on composition total weight meter from 1 To the water of 90 weight %, preferably from 5 to 80 weight %, more preferably from 10 to 70, and Most preferably from the water of 20 to 60 weight %.
According to another embodiment of the present invention, grinding Cleasing compositions is liquid non aqueous combination Thing.According to a kind of embodiment, waterborne compositions comprise based on composition total weight meter from 1 to 90 weight %, preferably from 5 to 80 weight %, more preferably from 10 to 70, and most preferably from The solvent of 20 to 60 weight %.The solvent being suitable for is well known by persons skilled in the art, such as Aliphatic alcohol, has ether and the diether of 4-14 carbon atom, glycol, alkoxylated diols, glycol Ether, alkoxylate aromatic alcohol, aromatic alcohol, terpenes, natural oil, or its mixture.
According to a kind of embodiment, grind Cleasing compositions for having 6 to 8 20 DEG C of measurements, Preferably from 6.5 to 7.5, and the neutral composite of the pH of most preferably from about 7.Another according to one Outer optional embodiment, grinds Cleasing compositions and has the pH being more than 4 20 DEG C of measurements. According to another kind additionally optional embodiment, compositions has to be measured less than 8 at 20 DEG C pH.Such as, grind Cleasing compositions can have from 8 to 11 or from 8 to 10 pH.Adjust The mode of whole pH is known to those skilled in the art.
If grinding Cleasing compositions is liquid form, then its can be have from 4000 to The compositions of the thickening of the brookfield viscosity (20 DEG C) of 50000mPa s.
Grind Cleasing compositions and can further include surfactant.One according to the present invention is real Execute scheme, grind Cleasing compositions and comprise based on composition total weight meter from 0.1 to 10 weight Amount %, preferably from 0.5 to 8 weight %, and most preferably lives from the surface of 1 to 5 weight % Property agent.
The surfactant being suitable for is known to a person skilled in the art and is selected from nonionic, the moon Ion, amphion, both sexes, cationic surfactant, and its mixture.
The example of the nonionic surfactant being suitable for is for being hydrophilic simple epoxy by character Alkane and aliphatic series or the condensation reaction system of alkyl aromatic hydrophobic compound with hydrogen atoms Standby compound.In alkyl portion in anion surfactant for example, its molecular structure being suitable for Divide and there is the organic sulfur acid monoester and sulfonic acid comprising the branched of 6-22 carbon atom or straight chained alkyl Water soluble salt.The example of zwitterionic surfactant being suitable for be aliphatic quaternary ammonium, sulfonium and Compound, it has the aliphatic group from 8 to 18 carbon atoms and is dissolved base by anionic water Group substituted aliphatic group, such as glycine betaine and betanin derivative, such as alkyl betaine, Particularly C12-C16Alkyl betaine, 3-(N, N-dimethyl-N-palmityl ammonium)-propane-1-sulphur Acid glycine betaine, 3-(dodecyl methyl-sulfonium)-propane-1-sulphonic acid betaine, 3-(cetyl methyl -)-propane-1-sulphonic acid betaine and N, N-dimethyl-N-dodecyl-glycine.It is suitable for Amphoteric surfactant e.g. comprises the alkyl of 8 to 20 carbon atoms and water-soluble by anion Solve the derivant of the aliphatic secondary and tertiary amines of the substituted aliphatic group of group, such as 3-dodecyl amino -sodium propionate, 3-dodecyl aminopropane-sodium sulfonate and N-2-hydroxyl-dodecyl-N-methyl cattle sulphur Acid sodium.The example of the cationic surfactant being suitable for is quaternary ammonium salt, and it has one or two The alkyl of 8-20 carbon atom or aralkyl and two or three little aliphatic series (such as methyl) base Group, such as, CTAB.Other example is at well-known textbook such as “Household Cleaning,Care and Maintenance Products”,Edts. Herrmann G.Hauthal, G.Wagner, the 1 edition, Verlag f ü r Chem. Industrie H.Ziolkowsky 2004 or " Kosmetische Emulsionen und Cremes”,Gerd Kutz,Verlag für Chem.Industrie H.Ziolkowsky 2001 In be given.
The abrasive composition of the present invention can further include the composition assisting its clean-up performance.Example As, said composition can comprise detergent promoting agent and the mixture of this promoting agent, its consumption base It is calculated as up to 25 weight % in total composition.Inorganic or the organic detergent being suitable for is promoted Agent is known to those skilled in the art and is selected from such as sodium tripolyphosphate or lagoriolite.
According to a kind of embodiment, in addition to component noted above, grind Cleasing compositions and enter One step comprise dispersant, thickening agent, preservative, wetting agent, foaming agent, fluoride source, Flavoring agent, aromatic, coloring agent, activating agent and/or buffer system.The example of activating agent is The reagent of medicine, biology or cosmetic active, Biocide or disinfectant.The grinding of the present invention It is optional that Cleasing compositions can be additionally included in this not mentioned but known to those skilled in the art other Composition.
The grinding Cleasing compositions of the present invention can further include carrier material such as toothpaste formulation, Chewing gum, paster, soap, unguentum or oil.
The present inventor is it was surprisingly found that comprise the calcium carbonate of surface reaction as grinding The grinding Cleasing compositions of mill material provides the gentleest and low abrasiveness.Therefore, the present invention Grinding Cleasing compositions be suitable for cleaning most possibly by tradition carbonic acid calcium based abrasives damage Fine surface, such as automotive paints, pottery cooking stove, automobile instrument panel, fittings of bathroom, quick Sense tooth or teenager teeth.
According to a kind of preferred embodiment, the grinding Cleasing compositions of the present invention is mouth care Compositions.Preferably grinding Cleasing compositions is toothpaste, dentifrice, the powder that cleans for dentifrice Or chewing gum, and more preferably toothpaste.
If grinding Cleasing compositions is oral care composition, then the calcium carbonate of surface reaction can For naturally occurring or synthetic calcium carbonate and carbon dioxide and the product of phosphoric acid.The carbonic acid of surface reaction The calcium carbonate that calcium can be reacted by a type of surface forms or can be two or more kind The mixture of the calcium carbonate of the surface reaction of type.
According to a preferred embodiment of the invention a, grinding Cleasing compositions is toothpaste and surface The calcium carbonate of reaction is naturally occurring or synthetic calcium carbonate and carbon dioxide and the product of phosphoric acid.Tooth Cream can have the pH between 8 and 10.
According to a kind of embodiment, toothpaste comprises based on toothpaste gross weight meter from 10 to 80 weights Amount %, preferably from 15 to 70 weight %, more preferably from 20 to 60 weight %, the most more preferably From 25 to 50 weight %, and the calcium carbonate of the surface reaction of most preferably from about 30 weight %.
The toothpaste of the present invention can comprise the calcium carbonate of this surface reaction as unique grinding-material. According to another embodiment, the toothpaste of the present invention comprises the grinding that at least one is extra further Material.This at least one extra grinding-material is selected from extra grinding material defined above Material.Preferably, this at least one extra grinding-material is selected from natural whiting, precipitates carbonic acid Calcium, aluminium hydroxide, calcium hydrogen phosphate, silicon dioxide, hydroxyapatite, and its mixture.
According to a kind of embodiment of the present invention, grinding Cleasing compositions is toothpaste, described toothpaste Comprise use carbon dioxide based on toothpaste gross weight meter at least 6 weight % and at least one acid The calcium carbonate of the surface reaction of (preferably phosphoric acid).According to another embodiment of the present invention, grind Mill Cleasing compositions is toothpaste, and described toothpaste comprises based on toothpaste gross weight meter at least 6 weight % Utilize carbon dioxide and at least one acid (preferably phosphoric acid) surface reaction calcium carbonate, with And 1 to 80 extra grinding-material of weight %, it is preferably selected from natural whiting, precipitates carbonic acid Calcium, aluminium hydroxide, calcium hydrogen phosphate, silicon dioxide, hydroxyapatite, and its mixture.
According to a kind of embodiment of the present invention, grinding Cleasing compositions is oral care composition And the grinding-material being contained in oral care composition has between 10 and 100, excellent Selected introductions Radioactive Dentin Abrasion (RDA) value between 30 and 70.According to the present invention one Plant embodiment, grind Cleasing compositions and be oral care composition and be contained in mouth care group In compound surface reaction calcium carbonate have between 10 and 100, be preferably between 30 with Radioactive Dentin Abrasion (RDA) value between 70.According to another embodiment of the present invention, Grind Cleasing compositions be toothpaste and be contained in toothpaste surface reaction calcium carbonate have between Between 10 and 100, the Radioactive Dentin Abrasion (RDA) being preferably between 30 and 70. According to a kind of embodiment of the present invention, toothpaste is for sensitive teeth and/or teenager teeth Toothpaste, and preferably, the calcium carbonate of surface reaction has between 30 and 70, and The most preferably RDA between 30 and 50.
In addition to grinding-material, oral care composition can further include fluoride chemical combination Thing, surfactant, binding agent, wetting agent, remineralizing agent (remineralizers), tune Taste agent, sweeting agent and/or water.
The example of fluoride compound being suitable for be sodium fluoride, stannous fluoride, sodium monofluorophosphate, Potassium fluoride, stannous fluoride potassium, fluostannic acid sodium, chlorofluorination stannous and amine fluoride.Fluoride Compound can be calculated as adding from the amount of 0.1 to 2 weight % based on oral care composition gross weight Add.When the amount of the fluoride compound used provides 300 to 2000ppm, excellent in toothpaste When selecting the available fluorine radical ion of about 1450ppm, then can realize good result.
The surfactant being suitable for is typically to live on the anion organic synthesis surface of wide pH scope Property agent.Use with about 0.5 to 5 weight % scope based on oral care composition gross weight meter The representative of this surfactant is the water soluble salt of following material: C10-C18Alkyl sulfate, Such as sodium lauryl sulphate, the sulfonated monoglycerides of fatty acid, such as coconut monoglyceride, The fatty acid amide of taurine, such as N-methyl-N-palmityl sodium taurocholate, and hydroxyl second The fatty acid ester of sulfonic acid, and aliphatic amides such as N-sodium N-lauroyl sarcosinate.But, it is possible to To use the surfactant being obtained from natural origin, such as cocamido propyl betaine.
The binding agent being suitable for of the denseness (consistency) desired by offer or thickening agent are such as It is hydroxyethyl cellulose, sodium carboxymethyl cellulose, natural gum such as karaya, arabic gum, Tragacanth, xanthan gum or cellulose gum, colloidal silicate, or the silicon dioxide of segmentation.Logical Often, it is possible to use be calculated as the amount of 0.5 to 5 weight % based on dentifrice composition gross weight.
Various wetting agent well known by persons skilled in the art, such as glycerol, sorbose can be used Alcohol and other polyhydric alcohol, such as consumption are based on oral care composition gross weight meter 20 To 40 weight %.The example of flavoring agent being suitable for include wintergreen oil, Oleum Menthae Rotundifoliae, Oleum menthae, Cloves oil, Sassafras oil and the like.Saccharin, aspartame, dextrose or levulose can Being used as sweeting agent, such as consumption is based on oral care composition gross weight meter 0.01 to 1 Weight %.Preservative such as sodium benzoate can be calculated as 0.01 based on oral care composition gross weight Amount to 1 weight % exists.Coloring agent such as titanium dioxide also can be added into mouth care combination In thing, such as its consumption is calculated as 0.01 to 1 weight % based on oral care composition gross weight.
According to a kind of embodiment of the present invention, toothpaste is by the method system comprised the following steps Standby:
I) water and wetting agent and optionally at least one thickening agent, preservative, fluorine are provided Compound and the mixture of sweeting agent,
Ii) calcium carbonate reacted on surface and the optional coloring agent mixture to step i) is added In, wherein the calcium carbonate of surface reaction is naturally occurring or synthetic calcium carbonate and carbon dioxide and at least Plant the product of acid,
Iii) add surfactant to step ii) mixture in, and
Iv) optionally, add flavoring agent to step iii) mixture in,
The most optionally, extra grinding-material is in step ii) after and in step iii) it Front interpolation.
But, the toothpaste of the present invention can also by well known by persons skilled in the art any other Prepared by method.
According to another aspect of the present invention, the grinding Cleasing compositions of the present invention is used for cleaning Surface.
According to another aspect of the present invention, it is provided that for the method cleaning surface, wherein this table Face contacts with the grinding Cleasing compositions according to the present invention.By said composition being applied to this table Face, such as, by spraying, pour into a mould or extrude, this surface can be made to contact with the present composition. Can be pure or mop in the compositions of dilute form by using suitable measure to be such as soaked in, Napkin, brush or cloth, grind Cleasing compositions and can be applied to this surface
According to a kind of embodiment of the present invention, this surface is abiotic surface, is preferably selected from Household hard surface, dish surface, leather surface and vehicle surface.Household hard table The example in face is refrigerator, refrigerator, washing machine, automatic dryer, baking box, microwave oven, pottery Porcelain cooking stove, fittings of bathroom or dish-washing machine.The example of dish surface is plate, cutlery, anvil Plate or pan.
According to another embodiment of the present invention, this surface is lived surface, is preferably selected from Human body skin, animal skin, human hair, animal hair, and oral cavity tissue such as tooth, Gingiva, lingual surface or buccal surface.
According to a kind of embodiment of the present invention, the inventive method farther includes to rinse this combination The step of thing.
Based on be intended to illustrate certain embodiments of the present invention and for non-limiting embodiment with And accompanying drawing, it is better understood with the scope of the present invention and benefit.
Accompanying drawing explanation
Fig. 1 shows that the toothpaste sample according to the present invention is manufacturing the photograph being applied on paper cloth the same day Sheet.
Detailed description of the invention
Embodiment
1. measuring method
The measuring method used in an embodiment is described below.
Particle size distribution
The Sedigraph 5100 from Micromeritics company of the U.S. is used to measure grinding-material The particle size distribution of particle.The method and instrument are known to those skilled in the art and usual It is used for determining the crystallite dimension of filler and pigment.This measurement is comprising 0.1 weight-% Na4P2O7Aqueous solution in carry out.High speed agitator and ultrasound wave is used to make sample dispersion.For Measurement scattered sample, is not added with other dispersant.
PH value
The pH of suspension use at 25 DEG C Mettler Toledo Seven Easy pH meter and Mettler ToledoExpert Pro pH electrode measures.3 schools of instrument Accurate (according to stagewise method) has pH value 4,7 first by commercially available at 20 DEG C And the buffer solution (from Sigma-Aldrich Corp., the U.S.) of 10 is carried out.Record PH value be that the end point values detected by instrument is (when the signal measured and the meansigma methods of last 6 seconds It is terminal when difference is less than 0.1mV).
Relative radioactivity dentin attrition (RDA)
Use and be equipped with the improved of the head toothbrushes that is arranged on corrosion resistant plate and Plexiglas surface Washability and abrasion resistance testing machine (Model 494, Erichsen GmbH&Co.KG, Germany) measure grinding-material relative RDA.Head toothbrushes scrubs Plexiglas surface 5000 times, Plexiglas surface-coated has the grinding cleaning particle comprising such as calcium carbonate or silica form Slurry.Abrasion on Plexiglas plate by measure the surface roughness that causes of polishing particles with And scratch depth assesses.Ultramicroscope is used for this measurement.Every block of plate is carried out Measure for 10 times.Randomly choose measurement point.
In order to be applied to by slurry on Plexiglas surface, use peristaltic pump by 200g slurry (15% grinding-material and the mixture of the Saliva Substitute without enzyme) pumps in loop.By pump Being set as 30, this is about 200ml water corresponding to the volume of pumping per minute.In use has Organic silicone tube of footpath 6mm.In order to have suitable stream of slurry, making machine is certain angle, So that arrange the inclination that direction is 2% of the outlet of plate relative to rustless steel sample.
5 blocks of Plexiglas plates are placed in the centre of corrosion resistant plate and use adhesive tape to be fixed on side (Plexiglas GS, 3mm are thick, and color: orange 2C04 is switched to 80mm x 80mm in advance Size).5 blocks of plates are required, to guarantee that brush can be at identical height brushing surface.Only The plate (No. 3) in centre is had to be used for the assessment finally worn away.Other plate adjusts only for height Degree, therefore they can be used for multiple times.
Head toothbrushes (Paro, Switzerland) is placed on the centre of corrosion resistant plate.All toothbrush brushes Hair has an equal length, rounded and be made up of nylon.Fixture itself be made of stainless steel and There is the gross weight of about 157g including head toothbrushes.
In order to the abrasion of tested calcium carbonate particle are carried out qualitatively and quantitatively, it is necessary to set up calibration Curve.In order to produce this curve, first measuring the abrasion of placebo, it is only without cleaning The saliva mixture of particle.This test have also contemplated that the toothbrush impact on abrasion.Additionally, use The abrasion of said system are for two kinds of silicon dioxide (Sorbosil AC 39 and Sorbosil AC 33) measuring, the two is all in toothpaste industry and is documented and confirmed grinding agent. The wearing valve (RDA) that their official measures has come forth and known.By described herein Measure and then the wearing valve that obtains is associated with the data announced, this allow to compare from The numerical value that the data of measurement described herein obtain with official standard method ISO 11609.Calibration song Line starts from the placebo in abrasion=0 and progressively reaches wearing valve 180, wherein Sorbosil AC 39 have 105 numerical value and Sorbosil AC 33 have 180 numerical value.
Brookfield viscosity
The brookfield viscosity of grinding-material particle suspension or grinding Cleasing compositions is producing 1 hour By using brookfield viscosity after afterwards and stirring 1 minute under 20 DEG C ± 2 DEG C and 100rpm Meter type RVT is measured, described RVT equipped with suitable disc type spindle, such as spindle 2 to 5。
Glossiness is measured
Glossiness measurement use haze meter " Haze-Gloss " (BYK Gardener GmbH, Germany) carry out.
2. material
Calcium carbonate that MCC1:100 part surface based on GCC1 with phosphoric acid is reacted and The blend of 20 parts of GCC2.Performance: d50=8.6 μm, d98=20.2 μm, relatively RDA=37, low wear intensity.
MCC2: the calcium carbonate that the surface based on GCC2 with phosphoric acid is reacted.Performance: d50 =6.3 μm, d98=15.8 μm, relative RDA=11, the lowest wear intensity.
MCC3: the calcium carbonate that the surface based on GCC1 with phosphoric acid is reacted.Performance: d50 =6.5 μm, d98=16.8 μm, relative RDA=61, medium wear intensity.
MCC4: the calcium carbonate that the surface based on GCC1 with phosphoric acid is reacted.Performance: d50 =3.8 μm, d98=11.0 μm, relative RDA=23, low wear intensity.
GCC1: the natural ground calcium carbonate obtained from Orgon limestone.Performance: d50=3 μm, d98=12, relative RDA=81, medium wear intensity.
GCC2: the natural ground calcium carbonate obtained from Avenza marble.Performance: d50= 1.7 μm, d98=8.0, relative RDA=100, high wear intensity.
GCC3: the natural ground calcium carbonate obtained from Avenza marble.Performance: d50= 8.86 μm, d98=50.0 μm.
3. embodiment
Embodiment 1 dentifrice composition
According to following procedure use in table 1 below the composition collected and consumption prepare toothpaste sample 1 to 6。
Step A: mixing water and Sorbitol in beaker.Mixing xanthan gum, sodium benzoate, Fluorophosphate (phoskadent Na 211, BK Guilini, Germany) and saccharin sodium, and will The mixture obtained adds beaker.
Step B: the calcium carbonate of surface reaction and titanium dioxide water-wet, and then added To the mixture of step A.Making mixture homogenize, mixing until obtaining uniformly (smooth) Compound.
Step C: under processing condition, by silicon dioxide Sorbosil TC 15 (PQ Corporation, U.S.) add to, in the mixture of step B, thus make mixture strongly rise Temperature.Stirring mixture, until mixture is cooled to room temperature.
Step D: under slow stirring, by the surfactant sodium dodecyl base of 25% solution form Sodium sulfate adds in the mixture of step C.
Step E: 0.8 weight % (2.4g) Herba Menthae Rotundifoliae flavoring agent is added to the mixing of step D In thing.
Assess phase stability by vision-based detection, and carry out pH value measurement as previously discussed. Mouthfeel is assessed by utilizing toothpaste sample to brush teeth.Sample is tested in production day.Result is converged Combining in table 2 below, it demonstrates that all samples is stable and has good texture and put down Sliding surface.Additionally, all samples has acceptable pH.
Table 1: the composition of toothpaste sample 1 to 6 and consumption.Percent refers to based on compositions total The percetage by weight of weight meter.
Table 2: the result that sample 1 to 6 is obtained.
Embodiment 2 dentifrice composition
According to following procedure use with the composition collected in table 3 and consumption prepare toothpaste sample 7 to 9。
Step A: by water, Sorbitol, fluorophosphate (phoskadent Na 211, BK Guilini, Germany), cellulose gum (Akucell AF 2985, AkzoNobel N.V., Holland), And sweeting agent (Celanese Corp., the U.S.) it is mixed in beaker.
Step B: the calcium carbonate of surface reaction utilizes water-wet with titanium dioxide, is then added To the mixture of step A.Mixture is made to homogenize, until obtaining homogeneous mixture.
Step C: under processing condition, by silicon dioxide Sorbosil TC 15 (PQ Corporation, the U.S.) add to the mixture of step B, thus make mixture strongly rise Temperature.Stirring mixture, until mixture is cooled to room temperature.
Step D: under slow stirring, by the surfactant Tego of 25% solution form Betaine ZF (Evonik Industries AG, Germany) adds the mixture to step C In.
Step E: 0.8 weight % (2.4g) Herba Menthae Rotundifoliae flavoring agent is added the mixing to step D In thing.
Assess phase stability by vision-based detection, and carry out pH value measurement as previously discussed. Mouthfeel is assessed by utilizing toothpaste sample to brush teeth.Sample producing after day, 6 weeks, after 12 weeks, Test after 6 months and after 12 months.Result comes together in table 4 below in 6, its display Go out all of sample be stable and there is good texture and smooth surface.Additionally, institute Sample is had to have acceptable pH, even after long storage cycle.Fig. 1 presents sample Product 7 to 9 are producing the photo being applied on paper cloth the same day, and it demonstrates that the texture of sample is non- Often smooth and in paste.
Table 3: the composition of toothpaste sample 7 to 9 and consumption.Percent refers to based on compositions total The percetage by weight of weight meter.
Produce day 6 weeks 12 weeks 6 months 12 months
Phase stability Stable Stable Stable Stable Stable
pH 8.58 8.63 8.64 8.75 8.83
Outward appearance/mouthfeel Good texture Good texture Good texture Good texture Good texture
Table 4: the result that sample 7 is obtained.
Table 5: the result that sample 8 is obtained.
Table 6: the result that sample 9 is obtained.
Embodiment 3 cleans (Scouring) cream
The composition collected in table 7 below and consumption preparation is used to clean cream sample 10 according to following procedure To 12.
Step 1: water is added with thickening agent (Rheosolve 633, Coatex SAS, France) To the beaker being equipped with agitator (speed: 380rpm).Use sodium hydroxide (50% solution) Adjust pH between 10 and 11.
Step 2: the carbon under high agitation (speed 2,250-300rpm), surface reacted Acid calcium or grinding calcium carbonate (as comparing embodiment) progressively add in the mixture of step 1. Stirring mixture is until in homogenizing.
Step 3: by cocoa glucosides (cocoglycoside) surfactant of 20% solution form (Plantacare 818UP, BASF, Germany) adds in the uniform homogeneous blend of step 2.So After, (speed 1,70rpm) adds Fructus Citri Limoniae quintessence oil and Polysorbate 60 under slow stirring.
Table 7: clean composition and the consumption of cream sample 10 to 12.Percent refers to based on combination The percetage by weight of thing gross weight meter.
The abrasion cleaning cream sample obtained according to following procedure the temperature of 23 DEG C and 24h hour Inside test:
Use washability and abrasion resistance testing machine (Model 494, Erichsen GmbH&Co. KG, Germany) measure abrasion, testing machine is equipped with the clamp device with plastic plate (fastening) with fixing cloth (Erichsen GmbH&Co.KG, Germany).By three Individual weight thing (400g) is fixed on clamp device so that this comprising this weight thing and plate is tight It is fixedly mounted with and puts the weight with about 580g.Side's cloth (size: 9x 9.1cm) is fixed on and has Binding agent (Scotch3M) adhesive tape plastic plate on and be placed in the breach of clamp device (notches)。
In testing machine, glass plate is fixed in for this purpose and horizontal position in the space provided Put.With binding agent Scotch adhesive tape by Plexiglas plate (size: 4cm x 30cm, Steba Kunststoffe AG, Switzerland) glue on a glass.Dish (tray) between top and plate away from It is about 4.5cm from about 3.9cm and the distance between tray bottom and plate.
2g water is added on the cloth that is fixed on clamp device.25g abrasive cleaner is added to On Plexiglas plate.By tension cord (tension cable), clamp device is positioned Plexiglas On plate.The setting that will test a machine to 200 circulations and starts.When off-test, remove Plexiglas plate is also rinsed.The framework of machine and glass plate utilize hot water then utilize from Sub-water is cleaned.Each sample test three times.
Haze meter " Haze-Gloss " (BYK Gardener GmbH, Germany) is used to pass through Measure Plexiglas plate and determine the abrasion cleaning cream sample the glossiness of 20 °.By left and right The most slightly movable plate and plate central authorities 8 differences at measure.Putting down of each sample All gloss values are recorded in table 8 below.The abrasion degree of sample is by from undressed Average gloss value measured by Plexiglas plate deducts the Plexiglas utilizing respective sample to process Average gloss value measured by plate calculates.The wearing valve of each sample and degree are in table 8 below In be given.
Table 8: clean the result that cream sample 10 to 12 is obtained.
By table 8 it may be concluded that clean combination with the comparing embodiment comprising grinding calcium carbonate Thing is compared, and the grinding cleaning of the calcium carbonate abrasives comprising the surface reaction according to the present invention combines Thing has relatively low wearing valve and causes less infringement (by higher light on cleaned surface Pool angle value shows).

Claims (15)

1. grinding Cleasing compositions, it comprises and is calculated as at least 6 weight % based on composition total weight The calcium carbonate of surface reaction as grinding-material, wherein the calcium carbonate of this surface reaction is natural Or synthetic calcium carbonate and carbon dioxide and the product of at least one acid.
Compositions the most according to claim 1, wherein said composition comprises at least one further Extra grinding-material, is preferably selected from silicon dioxide, precipitated silica, aluminium oxide, aluminum silicon Hydrochlorate, metaphosphate, tricalcium phosphate, calcium pyrophosphate, natural ground calcium carbonate, precipitates carbonic acid Calcium, sodium bicarbonate, bentonite, Kaolin, aluminium hydroxide, calcium hydrogen phosphate, hydroxyapatite, And its mixture.
3., according to the compositions of any one of the claims, wherein this at least one acid is selected from salt Acid, sulphuric acid, sulfurous acid, phosphoric acid, citric acid, oxalic acid, acetic acid, formic acid, and its mixing Thing, the most preferably, this at least one acid is phosphoric acid.
4. according to the compositions of any one of the claims, the wherein calcium carbonate of this surface reaction In particulate forms, described particle has from 0.1 to 100 μm, preferably from 0.5 to 50 μm, more Preferably from 1 to 20 μm, the most more preferably from 2 to 10 μm, and most preferably from 5 to 10 μm Weight Median particle size d50。
5., according to the compositions of any one of the claims, wherein said composition includes based on group Compound gross weight meter is from 10 to 80 weight %, preferably from 15 to 70 weight %, more preferably from 20 To 60 weight %, the most more preferably from 25 to 50 weight %, and most preferably from about 30 weight % The calcium carbonate of surface reaction.
6., according to the compositions of any one of the claims, wherein said composition is mouth care Compositions, preferably toothpaste, dentifrice, the powder cleaned for dentifrice or chewing gum, and its In preferably, the calcium carbonate of this surface reaction is naturally occurring or synthetic calcium carbonate and carbon dioxide and phosphoric acid Product.
Compositions the most according to claim 6, wherein the calcium carbonate of this surface reaction has Radioactive Dentin Abrasion (RDA) numerical value of 10-100, preferably 30-70.
8., according to the compositions of any one of the claims, wherein said composition does not comprise additionally Calcium carbonate-base material.
9. according to the compositions of any one of the claims, the wherein calcium carbonate of this surface reaction Comprising the calcium salt of insoluble at least part of crystallization of the anion of this at least one acid, it is at this Formed on the surface of naturally occurring or synthetic calcium carbonate.
10., according to the compositions of any one of the claims, wherein said composition comprises further Surfactant, it is preferable that its consumption is calculated as from 0.1 to 10 weight % based on total composition, Preferably from 0.5 to 8 weight %, and most preferably from 1 to 5 weight %.
11. cleaning surfaces methods, wherein this surface with according to any one of claim 1-10 Grinding Cleasing compositions contacts.
12. methods according to claim 11, wherein this surface is lived surface, preferably Selected from human body skin, animal skin, human hair, animal hair, and oral cavity tissue such as tooth, Gingiva, lingual surface or buccal surface.
The calcium carbonate of 13. surface reactions is as the purposes of grinding-material, the carbon that wherein this surface is reacted Acid calcium is naturally occurring or synthetic calcium carbonate and carbon dioxide and the product of at least one acid.
14. purposes according to claim 13, wherein the calcium carbonate of this surface reaction is used as tooth Tooth grinding-material.
15. are used for cleaning surface according to the grinding Cleasing compositions of any one of claim 1-10, It is preferred for cleaning the purposes of oral cavity tissue.
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